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Northwest Africa 14538
Basic information Name: Northwest Africa 14538
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14538
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 30 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 22 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14538 (NWA 14538)

Morocco

Find: 2018

Classification: HED achondrite (Eucrite)

Petrography: (J. Gattacceca, CEREGE) Igneous rock with microgabbroic texture. Typical grain size 400 µm. Main minerals are pyroxene and plagioclase. Low-Ca pyroxene has augite exsolution with a clear dichotomy in exsolution width (20 µm and <1 µm). Accessory troilite, chromite, ilmenite, silica polymorph, metal.

Geochemistry: Low-Ca pyroxene Fs60.1±0.7Wo2.4±0.3, FeO/MnO 30.9±1.5 (n=4). Augite exsolutions Fs27.7±1.2Wo42.5±1.3 (n=3). Plagioclase An89.2±0.3Ab10.5±0.2Or0.3±0.1 (n=4).

Classification: Achondrite (eucrite)

Specimens: Type specimen at CEREGE. Main mass with Jimmy Pizarro.

Data from:
  MB110
  Table 0
  Line 0:
Date:2018
Mass (g):30
Pieces:1
Class:Eucrite
Weathering grade:moderate
Ferrosilite (mol%):60.1±0.7 (n=4)
Wollastonite (mol%):2.4±0.3
Magnetic suscept.:3.57
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):6.3
Type spec location:CEREGE
Main mass:Jimmy Pizarro
Finder:anonymous
Comments:work name PIZ11; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1837 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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